Gilles is sponging off his mother, who runs a small hotel in a French coastal city. When he meets Helene, she takes over the job of mothering him, even treating his minor wounds at the hospital one night when he gets into a fight. Gilles's other passionate relationship is with Bernard, a self-absorbed, mediocre singer-guitarist who can't stay out of trouble with the law. Bernard's true passion is probably for Luc, the gay man he beats up in a washroom.
It's beautifully made; sometimes I thought I was watching a Carne film with Michele Morgan instead of Catherine Deneuve. Bruno Nuytten was the cinematographer; there's no one better for moody night scenes. Philippe Sarde's music is full-blown romantic, sometimes too much so. Techine doesn't bother with character development through plot, he just assumes that whatever passes in front of his camera is telling the story. Those casino scenes go nowhere, and the effort to bring Helene's dead lover's architectural plans to life is wasted, since it's just another occasion for Gilles to look hangdog and helpless.
All in all, it left me wondering about Techine's willingness to engage the viewer in the film's material. I walked out of Barocco many years ago, and Soeurs Bronte left me pretty much cold, although I admired the acting. Hotel des Ameriques doesn't seem to be about anything, and the characters are cardboard.